Smoke-burning furnace



(No Model.)

0. B. MARTIN. SMOKE BURNING FURNACE.

No. 437,219. Patented Sept; 30, 1890.

wil'w/esses .Ziave75l'or UNITED STATES PATENT OFFICE.

ORIEN B. MARTIN, OF AKRON, ASSIGNOR OF ONE-HALF TO THOMAS HALE AND JOHNLONGANEOKER, OF MOGADORE, OHIO.

SMOKE-BURNING FURNACE.

SPECIFICATION forming part of Letters Patent No. 437,219, datedSeptember 30, 1890.

Application filed February 24, 1890- Serial No. 341,582. (No model.)

To all whom it may concern.-

Be it known that I, ORIEN B. MARTIN, a citizen of the United States,residing at Akron, inthe county of Summit and State of Ohio, haveinvented certain new and useful Improvements in Smoke-Burning Furnaces,of which the following, with the accompanying drawings, is aspecification.

My invention relates to smoke-consuming furnaces. Its object is toprovide improved means for consuming the smoke by combustion Within thefurnace, and thus make a saving in the cost of fuel and avoid theannoyances incident upon allowing volumes of smoke to escape into theopen air.

With this object in view my invention consists in the construction andcombination of the furnace and accompanying apparatus de scribed andshown herein,and pointed out in the claims.

The drawing is a front elevation of myirnproved furnace, parts of thesame being broken away to more clearly illustrate its construction.

Above the smoke-jacket, which I place at the front end of the boiler, Iplace a branched stack A. A flue B connects said stack with an exhaustfan or blower C, said flue B being so connected with the stack thatbychanging the dampers K K the smoke will pass into the flue B and to theblower C from either side A or A of the yoke A. A diaphragm D dividesthe furnace vertically through its whole length. A fiue E leads from theblower O to the ash-pit on one side, and the flue E leads from saidblower O to the ash-pit at the opposite side of the furnace. Theblower-fan O is driven by the pulley c, as shown. At one side of thefurnace is a bell-crank F, to the lower arm of which is secured the rodG. The upper arm of said bellcrank operates the rod H, which is attachedto cranks k, k, and k, for the purpose of throwing the dampers K, K, andK.

In the operation of my invention the sides of the furnace are firedalternately. As shown in the drawings, the dampers are thrown forcoaling the left-hand side of the furnace, the right-hand side of thefurnace having therein a bed of coals. The smoke of the-left side of thefurnace passes back under the boiler, then comes through theboiler-fines to the smoke stack or jacket at the front of the boiler,whence it passes through the flue B into the blower O, and is forcedthrough the flue E to the right side of the furnace. Thence it passesback under the boiler, thence through the boiler-fines to thesmoke-stack jacket, and thence through the right branch A" of the stackA.

When the coal in the left-hand side of the furnace is fully coked and itis desired to fire the right-hand side of the furnace, the dampers K, K,and I are thrown, so that the smoke will pass from the right side of thefurnace into the flue B through the blower O, the flue E, and the branchA of the stack A.

The blower 0 must be run ata high enough speed to make a sufficientdraft. Sufficient fresh air will enter the furnace through the ordinarychannels to make perfect combustion.

The diaphragm D should be so constructed as that a portion of it may beremoved to al low the taking off of the man-head of the boiler when itis desired to clean the boiler. Said flues E and E may enter either theashpit or fire-box, as desired; but I prefer to have them enter theash-pit, as shown.

What I claim as my invention is-- 1. A furnace divided vertically by adia phragm into two divisions, in combination with a blower, a branchedstack connected with the smoke-jacket of the furnace, a flue connectingsaid branched stack and blower, flues leading from said blower to thetwo divisions of the furnace, dampers so arranged as to direct thecurrent from either division of the furnace through the blower to theopposite division of the furnace, and means for operatingsaiddampers,substantiallyasshown and described.

2. In a furnace, the furnace divided vertically by a diaphragm into twodivisions, and a branched stack above the smoke-jacket of the furnace,thebranches of the stack communicating with the divisions of thefurnaces, substantially as shown and described.

8. In a furnace, the furnace divided ver tically by a diaphragm into twodivisions, a

branched stack the branches of which comin presence of two witnesses,this 9th day of mgiiicate with the divisions of the furnace, December,1889. a ower, and dampers, all bein" so arran ed 3 w as that theproducts of combustion ma; be ORIEN MARIIN' 5 exhausted from eitherdivision of the furnace, Vitncsses:

substantially as specified. THOMAS HALE,

In testimony whereof I affix my signature, F. J. LIBIS.

